Call-register for telephone systems.



No. 887,233. PATENTED MAY 12, 1908. w. W. DEAN.

CALL REGISTER FOR TELEPHONE SYSTEMS.

' APPLICATION FILED OGT.18,1906.

4 r I 3 s w gw mw g UNITED STATES PATENT OFFICE.

WILLIAM W. DEAN, or

ELYRIA, omo, AssicNo-aro THE DEAN ELECTRIC COMPANY, OF ELYRIA, OHIO, A CORPORATION OF omo.

, CALL-BEGiSTEB FOR TELEPHONE SYSTEMS.

Specification of Letters Patent.

Patented May 12, 1908.v

. Application filed October 18, 1906. Serial No. 339,475.

To all whom it may concern:

Be it known that I, WILLIAM W. DEAN, a citizen of the United States, residing at Elyria, in the county of Lorain and State of Ohio, have invented certain new and useful Improvements in Call-Registers for Telephone Systems, of which. the following is a specification, reference being had therein to t e accompanying drawing.

My invention relates to call registers for telephone systems, and has for its object the production of a form of register which shall e efficient, simple in itself, and also very simple in its mode of mounting. My register is of that type which is located at the subscribers station, this being for many reasons the most desirable type of register to be used in systems where the charges are based upon the number of messages transmitted from any station. In such case, if the registersare located at the central oflice, or if the message-count is based upon tickets made out by the operators, it is not only very diffioult to prevent losses, but it is more difficult to satisfy the subscribers that false charges are not made againstthem. iiy permitting the subscriber to register his own call, in such fashion that he can see and count the number of messages he has sent, at all times, three important ends are attained. The first is to satisfy the subscriber; the second is to relieve the operator of an undesirable addition to her work, and thejthird is toassure greater accuracy in the final records,

with attendant saving of many calls which would otherwise be lost. It is true that with this system inspectors must be sent out to read the meters at stated intervals, but this has always been done in other public service systems, such as those. supplying gas and electric light, and the expense of the inspecw tors has never been found prohibitive to my knowled e.

Severa difficulties have heretofore existed in respect to subscribers registers. have been subject to being tampered with,

they havenot been susceptible of a plica they tion to all types of instruments, an have not always been fool-proof, which is sine qua non. Anything placed at the subscribers station must becapable of operating only as it is intended to perform its function; If any possible means'exist for misoperating, or mishandling-a piece of appa-.

ratus, the subscriber or some of his family,

1 form-in operating any'apparatus is to ush a The intelligence of t e un button'or lever. trained extends no further.

It has beenproposed to attach registers to different portions of'the telephone set, and toll boxes have been so attached, the" idea being that a special sound produced'in the dropping, of a coin will produce sonorous vibrations in the frame or casing, thence in the transmitter, and thence by transmission over the line, in the operators receiver. Such devices have not always Worked well, for one reason because it is now common to insulate the diaphragm of the transmitter with a soft rubber band, which acts as a sound insulatoras well as electrically. It has also been. roposed to attach some por-. tions of the toff apparatus or'the like to the transmitter itself, but the attachment has always been unsatisfactory because being detachable of necessity, it could be taken'off by other than authorized persons, and being fixed to other members than the transmitter, it necessarily limits the movement of the latter.

Briefly stated, my invention comprises as its characteristic and essential featuresthe combined use-of a 'Veeder cyclometer a lever for operating it which at the same time operates the sounding reed. All of these parts according to my invention are mounted on a su porting plate secured directly to the front p ate of the transmitter and are 'cov-"'90 co'nnectionwith or 'mounted'on'the lever, I

am not limited to the specific details, because there are several chan' es which can be made without altering the c'ar-acter of the invention which resides in mountin, the operating parts upon the front plate oft e transmitter.

My invention is illustrated in the accom panying drawings in which' Figure 1 is a fra mentary front elevation of a transmitter wit my attachment secured thereto. Fig. 2 is a rear elevation of the register attachment with the casing in section and showing how it is attached to the trans- I front plate having an aperture at 6. 1O

mitter front plate of which only a fragment is shown. Fig. 3 is a side elevation of a trans mitter with the inclosing shell in section.

Referring to the drawings, 1 represents a transmitter front, 2 the mouthiece thereon, and 3 the inclosing casing, all 0 the ordinary or any desired type. Inte ral with the easing 3, is an extension she 4 covered by a front plate 5 is secured to the front plate 1 of the transmitter and constitutes the supporting plate for the re ister mechanism, a description of which fo lows: The register 7, as I have stated, is of theVeeder cyclometer type and is secured to the supporting front plate 5 by means of a clip 8 fastened by screws 9 or other suitable means. This clip 8 is preferably bent into the shape shown with a foot portion 10 which engages the ped function of which will be more clearly set forth hereinafter;

\ Mounted on the front plate 5 is a bracket 17 which forms a sup ort for the sounding reed 18 and for the am er spring 19, the latter of which is in norma engagement with the T-shaped head 20 of the sounding reed so -as to revent its vibration during a certain the mechanism but also the erio of the o eration. The T-shaped head 'es in the pat of the operating stud 16 so that said stud engages it in both its forward and retro rade movements.

From t e foregoing it will be seen that all of the mechanism, including the register, the

sounding reed, and the damper spring, is carried by thefront supporting plate 5 which constitutes not only the sup ortin plate for out p ate of the extensionlcasing, thus dis ensing with an additional cover plate. ith this construction," all theelements of the device can be as-- sembled rior to the attachment of the supporting p ate to the front plate of the transmitter as is clearly shown in Figs. 2 and 3.

The 0 eration of the device is as follows: After ca ling the o erator at central in the usual manner and eing told to register, the subscriber presses upon the thumb piece 15, thus 0 erating the lever to carry the stud 16 over t e T-shaPed head 20 of the sounding reed 18. When the up er, end of the T- sha ed head is reached, t e stud 16 slips off an .engages the damper spring 19, which, if the lever is now carried to its extreme position,.presses the damper spring away from the reed and allows it to vibrate, thus giving a This signal which is transmitted to the operator at central. In the return movement of the- .lever, the-operating stud 16 goes back 'tonormal position upon the opposite side of the reached its normal position, the reed is disengaged so as to sna back into its normal positlon, but as the am er spring has beer released by the stud an is now m engagement with the free end of the reed, the latter will not vibrate. Thus, while the-reed is strained backand released, in opposite directions, twice in a com lete move ent of the lever (down and back there will e only one sounding thereof and therefore only onesignal given to the operator, and there will be no continued vibration to interfere with speech transmission. reed is made sufliciently long to compel the lever to 0 through its complete cycle, up one side am? down the other, before a number can be roperlyre istered on the meter. This ree is also ma e and adjusted with respect to the re ister so that the ratchets bn t e counter wilIwork sli htly before the stud 16 reached its limits. T is prevents the subscriber from giving a signal without causing the coun'terto register.

I have shown in dotted lines the general contour of the lower half of the transmitter, and it'will be seen that by cuttingaway the transmitter at a point indicated by the dotted lines, the extension casing 4 may be attached to any transmitter now'in service so as to contain the registering and signaling de-' vices. It'is preferable, however, to form'a casing for the transmitter which comprises the shell 3 and theextension shell 4' and so construct them that they will be universal '1 for all transmitter fronts.

the most convenient way, it will be clearly understood that many modifications and changes may be resorted to in practice without departinginany'way from the spirit or sco e of the invention, and I wish it clearly un erstood that all such changes and modi-' fications are contemplated by me and are within the purview of the'appended claims.

' Having-thus described my invention, what I claim and desire to secure by Letters Patentis:

1. The combination with .a transmitter, of signaling and registering devices, and means for supporting said signaling and registering devices from the front plate of such transmitter inside of the chamber formed by the back of such transmitter.

2. The combination with a transmitter, of signaling and registering devices, means for operating them simultaneously and means for supporting them rigidly from the front plate of such transmitter and within the space i'nclosed bythe shell of such transmit ter.

T-shaped head of the reed. When the stud The T end 'of the Y While I have illustrated my invention in 3. The combination with a transmitter, of signaling and registering devices located within the transmitter casing, and a mounting plate therefor which is secured to and behind the front plate et" the transmitter. Y

4. The combination with a transmitter having a'front plate, of a mounting plate sc cured thereto, registeringand signaling devices secured to said mounting plate, a com mon casing for the transmitter'and for; said registering and signaling" devices, and operating means for'said registering and signal:

, 1ng devices which projects from-the casing.

5. The combination with atransmitter having a front plate, of a supportin plate secured thereto, a registering device llaving its numbers visible through an opening in the supporting plate, a signaling device carried by the supporting plate, means for operating the signaling device and the registering device simultaneously, and a casing for the transmitter which covers said registering and signaling devices. I

6. The combination with a transmitter, of a supporting plate secured to the front plate of said transmitter, a clip secured to said supporting plate, a registering device. carried by said clip operating means for the register ing device, and limiting means carried by the clip to limit ,the movement of said-operating means.

7.- The combination with a transmitter, of

a supporting plate secured to the front plate ,thereof and provided with an aperture, a clip secured to said supporting plate, a registen ing device secured by said clip so that its numbers will be visible through the aperture in the supporting plate, means for operating said registering device and limiting stops for th'e'operating means carried by the clip, 8. In a call register for telephone systems, the combination with a transmitter front cured to said supporting plate, a registering here are visible through the sight opening, a signaling device carried by the supporting plate, means for operating said signaling device and said registering device simultaneously, stops for limiting the movement of said operating means, and a casing abutting the transmitter front plate and the supporting plate which covers said signaling and registering devices. p

In testimonywhereof I afiix my signature in presence of two witnesses.

, WILLIAM W. DEAN.

W'itnesses:

RAY H. MANsoN, SAM B. RAWsoN.

plate, of a supporting plate secured thereto; and provided with. a sight open ng, a clip sedevice secured by the clip so that its num 

